Window construction



Dec. 15l 1925.

J. sYLvAN WINDOW CONSTRUCTI N Filed June 21, 1922 Patented Dec. l5, 1925.

UNITED STATES JOSEPH SYLVAN, OF CICERO, ILLNOIS.

WINDOW CONSTRUCTION.

Appiication inea .Tune 21, 1922. serial No. 569,808.

T0 @ZZ whom t may concern.'

Be itknown that I, JOSEPH SYLVAN, a citizen of the United States, and a resident of Cicero, in the county of Cook and State of llinois, have invented certain new and useful mprovements in Window Construction; and l do hereby declare that the following is a full, clear, and exact description thereof', reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to improvements in window construction and consists Ot the matters hereinafter described and more particularly pointed out in the appended claims.

rlhe primary object 'of the invention is to provice in a double hung window, a simple and efficient means for loclringfthe lower sash against movement after it has been swung inw;` 1dly into the room, for the purpose of providing ventilation or for cleaning the outside thereof. f

Another object of the invention is to provide a novel means for preventing the sash from swinging into the room under wind pressure.

A further objectof the invention is to provide an iin-proved Groove strip to which the Aslide strips of the sash are connected for a prevent rattling of' the sash and theI entrance of dust and windat the sides of the sash.

rrlhese objects of the invention as well as the several advantages thereof will more fully appear as 'l proceed with my specilication.

'ln the drawings Fig. 1 is a vertical sectional view through a 'window construction embodying my inventioii.

Fig. 2 is an enlarged view of the parts shown in the bottom end of Fig. 1 with sevs eral of said parts in a changed relation.

Fig. 3 is a horizontal sectional view as taken on the line 3 3 of Fig. 1.

Fig. 4 is a view in front elevation of the parts shown in the Fig. 2.

Fig. 5 is a perspective view of a novel stop or locking plate embodied in my improved window construction.

Fig. 6 is a cross sectionJ through onev of the groove strips embodied in my improved ywindow construction. Y

Referringv now in detail to that embodiment of the invention illustrated in the accompanying drawings z-1O indicates as a whole, a window frame and 11 and 12 indicate the bott-om and top sash associated therewith. The window frame comprises the upright side members 13, a top or lintel 1e and a sill 15, all of the usual construe tion.

Each side `member includes inner and outer moulding` strips 16 and 17 respectively, and an intermediate parting strip 18, said strips defining in each side member, the inner and outer channels or grooves 19 and 2O for the bottom and top sash (see Fig. 3).

In the outer groove 20 of each side member of the frame 10 and extending from lintel to sill thereof is a combined guide and weather strip 21, hereinafter termed a groove strip, (see Figs. 3 and 6). Said strip is made of sheet metal, bent into a channel form and includes a main web 22 and iiiner and outer side flanges 23 and 24, respectively, arranged at substantially a right angle to. the plane of the main web. Said flanges 23 'and 24 terminate in inner and outer hook flanges 25 andk 26, extending parallel `with the web 22 and both facing in the same direction, the hook flange 26 being offset into a plane spaced from that of' the hook .flange 25.

The groove strips 21 are held iii place by screws 27 (see Fig. which pass through the main web into the side members ofthe frames, the heads Iof the screws being spaced from the web to permit a limited lateral shifting of the strip when necessary. lVhen .the groove strips are in place in their respective outer grooves of both side frame members, the hook lianges 25 are arranged in the plane of vbut are spaced from the parting strips 18 while the hook flanges 26 are arranoed in the lane of but are s1 aced from D v l Vand 26 of the groove strip, so that said slide strips are guided fora vertical movement VIA with reference to the groove strip. The inner marginal part of each slide strip is folded over upon itself as indicated at and 33 respectively, to stiften the strips along this margin.

Fixed to the side edges of each upright member of each sash is a strip 34, the inner marginal part of which is bent over to provide a hook flange 35 adapted to embrace the folded over marginal parts 32 and 33 of the slide strips. The slide strips 28 and 29 of the bottom and top sash are pivotally connected to their respective sash near their bottom ends as indicated at 36 in Figs. 1 and 2. Flach sash is connected by sash cords 37 to the usual weights (not shown) in the side members of the frame, the cords being attached to the sash by the saine pins which provide the pivotal connection 36 before mentioned.

ln the inner grooves 19 of each side meinber of the frame, is located a spring strip 39, which extends fi'om lintel to sill. Each spring strip is fixed along one margin to the associated side frame member near the parting strip, while the other niai'gin 40 of each strip is bent over into a plane to engage the hook flange 35 of the associated `sash strip and acts to center the sash in the frame and to provide a weatherproof joint at the sides of the bottom sash (see Fig. 3).

Means are provided for holding the bottom sash 11 in any one of its inward swung, open positions. Said means include a plate 41, which is fixed to the face of each of the inner moulding strips 16 near the sill 15. Each plate has an elongated, horizontally extending slot 42 which is curved downwardly as at 43 at one end, to provide an entrance opening or mouth in that edge `of the plate adjacent the sash. hat part 44 of the plate above the slot 42'teiminates short of the part 45 below the slot 42 and in said part 45 neail the mouth 43 of the slot are two notches 46 and 47 respectively, which open upwardly into said slot.

Un the bottom end of each side member of the botoni sash is secured a plate 48, including a laterally extending stud 49, which when the bottom sash is in its closed position, as shown in full lines in Fig. 1, engages upon that curved surface of the lower part 45 of the plate 41, defining a part of the mouth 43 of the slot. Vhen the top end of the sash 11 is swung inwardly about the pivots 36 as an axis, the studs 49 will ride'upwardly on those parts of the plates upon which they engage to enter the' mouths 43 of the slots 42 and then pass into the first notches 46 of said plates. This will hold the sash in the dotted'line position 11a in Fig. 1 against any further inward swinging movement under wind pressure or against an upward movement, should it be attempted to raise7 the sash while in this position.

Should more ventilation be desired, it is only necessary to lift the `sash upwardly, just enough to clear `notches 46 and then swing the sash inwardly, until the studs 49 enter the second notches 47, when the sash is held in the second dotted line position 11b, as shown in F ig. 1. Should it be desired to clean the outer' surface of the sash pane, the sash would be raised7 sufficiently and then swing inwardly until the studs 49 engage in the closed inner ends of the slots'42, when t-he sash will be in a substantially horizontal position, the outer surface of the pane then being readily accessible for cleaning from the inside of the room.

Should it be desired to raise7 the bottom sash,.this is done in the usual manner, the pins Aor studs 49 readily passing the top parts 44 of the plates 41 by reason ofthe spacing back of the edges ofV said top parts 44 as before described.

To prevent the bottom sash from swinging inwardly unser wind pressure when it is in a raised position, wherein its bottom edge is above the plates 41, l provide inwardly rextending iiange strips 50 betweenthe inner moulding strips 16 and spring strips 39, at the top ends of the side frame members.

The bottom ends of the strips 50 are spaced from the plates l1, a distance slightly'greater than the height of the bottom sash, so that they will in no manner interfere with the inward swinging of the sash when it is in position to co-operate with the plates 41, as before described. However, when the bottom sash is raised into a position above said plates 41, the strips 50 will act vto enw gage the side margins ofthe sash and prevent inward swinging movement.

'lVhen it is-desired to clean the pane of the top sash, from the inside of the room, the bottom sash is first swung into its full open position, as shown in Fig. 2, after which the top sash is lowered to almost its limit in the frame and then swung inwardly to lie substantially flat upon the bottom sash. As the top end of the top sash swings inwardly about the pivot studs 36, the bottoni end swings outwardly into the plane of the outer moulding strips 17 to engage beneath lugs 51 secured to the hook iiange 26 of the channel strips for that-purpose.

To prevent the inward swinging movementof the top sash under wind pressure when in its uppermost position, I provide inwardly projecting strips 52 on the hook flanges 25 of the groove strips. The bottom ends of said strips 52 are so positioned that they in no manner interfere with the inward swinging movement of the top sash when said sash is in the predetermined position wherein it operates as-before described.

lt is apparent that in the swinging movement of either sash, the hook flangesof the sash strips will slide over the folded over margins of slide strips, there never being a complete disengagement between said hook flanges and said slide strip margins.

Should either sash contract in width, the spring strips 39 will yield or the groove strips 2l will shift laterally to accommodate such contraction so as to maintain weatherproof joints between the frame and sash at all times.

While in describing my invention, I have referred to certain details of mechanical construction and arrangement of parts, I do not wish to be limited thereto except as may be pointed out inthe appended claims.

I claim as my invention 1. In combination with a window frame and a sash therein capable of both a vertical sliding and an inward swinging movement, a plate fixed to the side-member of the frame near its bottom end, said plate having a slot which opens through that edge of the plate adjacent the sash and having a notch which opens into said slot from below, and a laterally extending stud on the sash so positioned with reference to said plate that, in the vertical movement of said sash, said stud will freely pass said plate but in the inward swinging movement thereof, said stud will enter lthe plate slot to be engaged either in said notch or in the closed end of the slot to hold the sash in different angularly inclined positions.

2. In a combination with a window frame having side members provided with grooves therein, top and bottom sash associated therewith, a groove strip in one groove. of each side member, each groove strip having two hook anges arranged in a plane spaced from said groove, slide strips, one associated with each sash and having a hooked engagement with the flanges of the groove strips to permit a vertical sliding movement of the slide strips relative to the groove strips, and sash strips secured to the sash, said sash strips being pivotally connected to the guide strips and adapted to embrace a part of the slide strips, whereby the sash is capable of either an inward swinging movement or a vertical sliding movement.

3. In a combination with a window frame having side members' provided with grooves therein, top and bottom sash associated therewith, ya groove strip in one groove of each side member, each groove strip having two hook iianges, arranged in a plane spaced from said groove, slide strips, one

swinging or a vertical sliding movement, K

and means securing the groove strips in the associated grooves, said means permitting a lateral shifting of each groove strip outwardly and inwardly of its groove to accommodate for the expansion and contraction of the sash.

4. In combination with a window frame having side members each provided with inner and outer, upright grooves, bottom and top sash associated with said grooves, a groove strip` in each outer groove, each groove strip having two hook flanges arranged in a plane spaced from said grooves, slide strips associated with each flange of the groove strips, the slide strips of one sash having a hooked engagement with `one set of flanges of the groove strips and the slide strips of the other sash having a hooked en` gagement with the other set of flanges of the groove strips to permit a vertical sliding movement of the slide strips with reference to the groove strips, sash strips secured to the side members of the sash and pivotally connected with the slide strips, at their respective bottom ends, and a spring strip in each inner groove engaging a part of the sash strip of the bottom sash to center the sash in the frame and to form weather strips between the bottom sash and its associated grooves. y

In testimony that I claim the foregoing as my invention, I affix my signature this 12th day of J une, A. D. 1922.

JOSEPH SYLVAN; 

